108400813 has 8 divisors (see below), whose sum is σ = 109278720. Its totient is φ = 107526960.

The previous prime is 108400793. The next prime is 108400829. The reversal of 108400813 is 318004801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108400813 - 2⁵ = 108400781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108400013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72156 + ... + 73642.

It is an arithmetic number, because the mean of its divisors is an integer number (13659840).

Almost surely, 2^108400813 is an apocalyptic number.

It is an amenable number.

108400813 is a deficient number, since it is larger than the sum of its proper divisors (877907).

108400813 is a wasteful number, since it uses less digits than its factorization.

108400813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 108400813 is about 10411.5711110283. The cubic root of 108400813 is about 476.8087095767.

The spelling of 108400813 in words is "one hundred eight million, four hundred thousand, eight hundred thirteen".